Adjustable mounting for terminal-bank panels



Patented May 29, 1923.

UNITED STATES PATENT OFFICE.

OSCAR F. FOR'SBERG, OF YONKERS, NEW YORK. ASSIGNOR TO WESTERN. ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

ADJUSTABLE MOUNTING FOR TERMINAL-BANK PANELS.

Application filed December 4, 1919. Serial No. 342,377.

To all w 7mmy if may czmccrny Be it known that I, Oscar: F. Fonsnnc, a citizen of the United States, residing at Yonkers. in the county of Westchester, State of New York, have invented certain new and useful Improvements in Adjustable Mountings for Terminal-Bank Panels, of which the following is a full, clear, concise, and eX- act description. A

This invention relates to automatic switches employed to interconnect telephone lines and more particularly to switches of the panel type. Its object is the provision of an adjustable mounting whereby a ypanel can be adjusted in all directions to the end that the contact terminals on the face of said panel can be brought into proper alignment with their respective Contact brushes.

In a multiple brush selector switch, for

example, such as that described in U. S. Patent 1,123,7 99 to John N. Reynolds, there are employed a number of terminal bank panels arranged in superposed relation to each other and vertically operated contact brushes cooperating with the terminals on the faces of the panels, It is important that these terminals be in proper alignment with their respective contact brushes as any appreciable misalignment is likely to result in poor contacts. Duel to inevitable manufacturing variations it has been found difficult in many instances to secure proper alignment when the panels are rigidly attached to a supporting frame without suitable provisions whereby the panels can be readily adjusted so that the terminals will line up with the brushes.

In accordance with the above object, this invention provides a simple and convenient means whereby terminal bank panels can be adjusted in all directions.

This invention is best described by reference to the drawing, in which Fig. 1 is a fragmentary front elevation of three panels with adjustable inountings and a supporting structure therefor. Fig. 2 is a fragmentary perspective view showing two panels and the mounting arrangement whereby the panels are adjusted, and Fig. 3 is a perspective detail of a supporting member for the panels.

In Figs. 1 and' 2, 1, 2 and 3 are panels comprising layers of terminal strips extending horizontally across the anels and insulated from each other. ach terminal k2O of the die cast comb-21.

striphas a terminal for each of the vertical group rows and, therefore, each vertical group row is a duplicate of and is multiplied with all the other vertical group rows of the same panel. For each vertical group row a set of contact brushes (not shown) and a mechanism for moving these brushes up and down so as tov pick out predetermined groups of terminals 15, 16 and 17, is provided. lVhen these Contact brushes are not busy they rest at the bottom of their respective group rows and are held in alignment therewith by the teeth 18, 19 and A steel structure is provided for $supporting the panels and the latter are adustably mounted on this structure by means of the horizontal screws 5 and vertical screws 6. Screws 5 engage the lugs 8 and 9 of the supporting member 4 by the apertures 13 and 14 and are held in place therein by nuts 10 and 11 and engage apertures at points 12 in the frames of the panels. vThe panels are adjustable horizontally by means of screws 5 and nuts 10 and 11. Screws 6 engage the frames of the panels and bear on cross member 7 of the supporting structure and the panels are vertically adjustable thereby. The apertures .at points 12 in the frames of the panels are made appreciably larger than the engaging diameter of the screws 5 and thus provide means whereby the panels can be adjusted both vertically and horizontally in a plane parallel to their faces. It will be seen then that screws 5 and 6 and the apertures at points 12 provide means whereby the panels can be readily adjusted in all direc/tions.

Supporting member 4 embodies the unique and economical feature of providing two lugs for screws 5, thus obviating the necessity of providing and attaching two supporting lug members at those points where two panels join, as shown in Fig. 2.

What is claimed is:

1. In combination with a terminal bank, a supporting structure therefor, and horizontal and vertical screws, each associated with said bank and said supporting structure jointly, said terminal bank adapted to be moved horizontally and vertically through the adjustment of said horizontal and vertical screws respectively.

2. In combination with a terminal bank and a supporting structure therefor, a lug attached to said supporting structure, a horizontal screw attached to said lng'y and to said bank, and cooperating therewith to provide horizontal adjustment for said bank and a vertical screw attached to said bank bearing` on said supporting structure and providing` vertical adjustment 'for said bank.

3. In combination with a terminal bank and a supporting` structure therefor, a lug` attached to said supporting structure, a horizontal screw attached to said lunr and engaging an aperture in the trame oitv said bank, said aperture being, in diameter, appreciably larger than the engaging diameter Iof said horizontal screw member; a vertical screw attached to said bank and bearingv on said supporting` structure, said horizontal and 'vertical screws together with said apertnrein trame of said bank affording adjustment for said bank in all directions.

4L. In combination, a supj'iorting,` structure, two terminal bank panels supported by said structure in superposed relation one to the other, a double lug supporting member atached to said structure, and two horizontal adjusting` screws, each associated jointly with said member .and one ot said panels, and adapted to provide horizontal adjustment for said panels.

5. In combination, two terminal bank panels in super-posed relation, a supgorting` structurefor said panels. a double lug supporting member for said panels attached to said supporting` structure, horizontal screws providingforward and back adjustment 'tor said panels, each secured jointly to one ot the lugs ol said supporting' member and to one oil' said panels, and each extending,r through an aperture in its respectively associated panel, said aperture being larger than the portion oi said screw which passes therethrough, thereby j n'ovidingv lateral adjustment tor said panels, and a vertical screw jointly engaging` said panel and said supporting structure, whereby said panel may be adjusted vertically.

lu witness whereof, I hereunto subscribe my name this lst day of' December, A.. D., 1919.

OSCAR F. FORSBERG. 

